Ingliz tili nazorat ishi javoblari 8 sinf

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Fizika 8-sinf 201 201 1- nazorat ishi mavzu

Bir xil ishorada zaryadlangan jismlar______________________________turli xil ishorada zaryadlangan jismlar____________________________________________________. Elektr o‘tkazmaydigan modda va jismlar________________________________deb ataladi. Dielektriklardan yasalgan jismlarga ________________ deyiladi. Elektronini yo‘qotgan atom _______________________________________________deyiladi. Elektron biriktirib olgan atom__________________________________________deyiladi. Zaryadlar o‘tkazgichning _____________________________joylashib_________________bo‘lmaydi. Zaryadlar jism sirtida____________________________________________________taqsimlanadi. Uchlik joylarida______________________tekis joylarida______________________bo‘ladi. Kulon qonuni. Ikkita nuqtaviy elektr zaryadlarining o‘zaro ta’sir kuchi, shu zaryadlarning miqdorlariga____________________________________________va orasidagi masofaning kvadratiga____________________________. Musbat zaryad hosil qilgan elektr maydon kuch chiziqlari zaryaddan____________________________________manfiy zaryadniki esa zaryadga_________________________________________________________bo‘ladi.

2- NAZORAT ISHI
Mavzu: Elektr zaryadlari. Elektr maydon

Nazorat shakli: Yozma ish

Tabiatda elektr hodisalari haqida ma’lumot yozing.
Sig‘imi 5 pF bo‘lgan yassi kondensator oralig‘iga suyuqlik shimdirilgan qog‘oz kiritildi. Shimdirilgan qog‘oz uchun e=12 ga teng bo‘lsa, kondensator sig‘imi nimaga teng bo‘ladi?
Elektr maydon kuchlanganligi 100 N/C bo‘lgan maydonga zaryadli zarra kiritilganda unga ta’sir etuvchi kuch 5 N ga teng bo‘ldi. Zarradagi zaryad miqdori nimaga teng?
O‘tkazgich uchlariga 10 V kuchlanish qo‘yilganda 5 J ish bajaradi. O‘tkazgich uchlaridan oqib o‘tgan zaryad miqdori nimaga teng?

Yashin nima? U qanday sodir bo‘ladi?
Sig‘imi 3 pF bo‘lgan yassi kondensator oralig‘iga suyuqlik shimdirilgan qog‘oz kiritildi. Shimdirilgan qog‘oz uchun e=9 ga teng bo‘lsa, kondensator sig‘imi nimaga teng bo‘ladi?
Elektr maydon kuchlanganligi 120 N/C bo‘lgan maydonga zaryad miqdori 0.05 C zaryad kiritilganda unga qanday kuch ta’sir qiladi?
Zaryad miqdori 0.5 C ga teng bo‘lgan zaryadni o‘tkazgich bo‘ylab ko‘chirishda 10 J ish bajarilgan bo‘lsa, o‘tkazgich uchlariga qanday kuchlanish qo‘yilgan?

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ishining bali – bahosi:

3- NAZORAT ISHI

Mavzu: Elektr toki. Elektr zanjir

Nazorat shakli: Yozma ish

Uzunligi 1 m va ko‘ndalang kesimi yuzi 0,25 mm 2 bo‘lgan kontsantan simning qarshiligi 2 Ω. Kontsantanning solishtirma qarshiligini aniqlang.
Elektr lampa qisqichlaridagi kuchlanish 220 V ga teng bo‘lganda, lampadagi tok kuchi 0,1A bo‘ladi. Agar lampadan 0,05 A tok o‘tsa, bu lampaga qanday kuchlanish berilgan?

O‘tkazgich uchlariga 3 V kuchlanish berilganda undan o‘tayotgan tok kuchi 2A ga teng bo‘ldi. O‘tkazgichni kuchlanish 9 V bo‘lgan tok manbayiga ulansa, o‘tayotgan tok kuchi nimaga teng bo‘ladi?
Nikelin simdan tayyorlangan reostat chulg‘amining qarshiligi 36 Ω, simning ko‘ndalang kesim yuzi 0.2 mm 2 bo‘lsa, uning uzunligi qanday? ρ_n=0,4·10 -6 Ω·m.
Elektr lampa qisqichlaridagi kuchlanish 110V ga teng bo‘lganda, lampadagi tok kuchi 0,5A bo‘ladi. Agar lampadan 0,25 A tok o‘tsa, bu lampaga qanday kuchlanish berilgan?

4- NAZORAT ISHI

Elektr qarshiligi;
Reostat;
Eruvchan saqlagich;
O‘zaro ulanmagan o‘tkazgichlar.

a) Reostat; b) Rezistor;

c) Potentsiometr; d) Parallel ulash.

3. Qarshiligi 8 va 10Ωo‘tkazgichlar o‘zaro

parallel ulangan. Umumiy qarshilik nimaga teng?

4. Zanjirdagi voltmetr nimani ko‘rsatadi? (3-rasm).

Biologiya fanidan nazorat ishi va labaratoriya daftari

2.Inson faoliyati bilan bog’liq omillar qanday nomlanadi?

3.Qaysi qatorda biotic omillar to’g’ri ko’rsatilgan

4.Ekologik omilning organizm hayot faoliyatiga ko’rsatadigan tasirining eng qulay chegarasi

5.Nemis olimi Yustus Fon Libix qanday hodisani o’rgangan.

a)uy pashshasining ekologik omilga nisbatan chidamlilik chegarasini o’rgangan

b)madaniy o’simliklarning hosildorligi tuproq tarkibida kam miqdorda bo’ladigan mineral moddalarga

6.Kosmopolit organizmlarni toping.

7.doimiy muhit sharoitida, muhit omilining tor ko’lamda o’zgarishiga bardosh bera oladigan

organizmlar nima deyiladi.

8.Turning biotizim sifatida mavjudligini belgilab beruvchi abiotik va biotic omillar yig’indisi nima

9.Tuproq muhitida yashovchi organizmlar nima deyiladi.

10.tirik organizmlarning ichki organlari va to’qimalarida yashovchi parazid organizmlar nima deyiladi.

11.Parazit organizmlar uchun asosiy yashash muhitini toping?

13.Biologik ahamiyatiga ko’ra quyosh nuri necha hil spektrga ajratiladi.

14.Melanin pigmenti va D vitamin qaysi nur tasirida hosil bo’ladi?

15.Quyosh spektrida yerga yetib keladigan nurni 50% qismini qaysi nur tashkil etdi.

16.O’simlik organlarining yorug’likka tomon harakati nima deyiladi?

17.O’simlik gullarining kunduzi ochilib tunda yopilishi qanday hodisaga mison bo’ladi.

18.Kalmar, shaqildoq ilon, bo’gma ilonlar qaysi nurlarni sezuvchi mahsus organlari mavjud.

a)o’simlik va hayvonlarning o’sish va rivojlanishini kun uzunligiga bog’liqligi

b)uzun kun o’simliklari

c)qisqa kun o’simliklari

d)o’simliklarning fotosintez qilish hususiyati

20.Gullashi kun uzunligiga bog’liq bo’lmagan o’simliklarni aniqlang?

Sana:________________________

NAZORAT ISHI . NI –3

Nuqtalar o’rniga mos javobni qo’ying.

O’simlik va hayvonlarning o’sishi, rivojlanishi kun uzunligiga bog’liq. Bu

hodisa …….. deyiladi. .………… o’simliklarining gullashi kun uzunligiga bog’liq

emas. Agar kun qisqa bo’lsa va yorug’lik yetishmasa, …………… o’simliklar

o’sishda davom etadi, lekin gullamaydi.

Termoregulyatsiya jarayoni usullariga hamda harorat omillariga

moslanishiga ko’ra organizmlarni ikki guruhga: …………. va …………….

organizmlarga ajratiladi.

………………. tropic , subtropik iqlim mintaqalarida va mo’tadil iqlim

mintaqalarida quyosh yahshi isitadigan joylarda o’sadi. …………………..yer

sharining sovuq va mo’tadil iqlim mintaqalarida tarqalgan. Issiq haroratda

o’simliklarning qizib ketishdan himoya qiluvchi organi- ……………. orqali

…………….- suv bug’latish hisoblanadi.Ayrim o’simliklar suvni kamroq

bug’latishga turlicha moslashgan. Masalan ……… ni bargi tikonga aylangan ,

………….. ning bargi ignasimon shaklda.Urug’I tinim davrini o’taydiyan bir yillik

o’simliklar………….. deyiladi.

Namlikga bo’lgan talabiga ko’ra barcha quruqlik o’simliklari 3 ta guruhga

bo’linadi. ………….. namlik kam bo’lga muhitda o’sishga moslashgan o’simliklar .

……………nam tuproq yoki namlik yuqori bo’lgan hududdda yashashga

moslashgan o’simliklar . ……………….. mo’tadil nam sharoitda o’sishga

moslashgan o’simliklar.

Tuproqda hilma xil mikroorganizmlar (……………), zamburuo’lar,

umurtqasiz hayvonlar (……………), umurtqali hayvonlar (……………..) yashaydi.

Lishaynik tanasida ……………. va ……………. O’zaro simbioz usulda

Nuqtalar o’rniga mos javoblar

1.sovuqqa chidamli o’simliklar 2.barg og’izchalari 3.efemer 4.kaktus 5.neytral

6.qarag’y 7.kserofitlar 8.poykiloterm 9.gigrofit 10.transpiratsiya

11.fotoperiodizm 12.mezofit 13.gomoyoterm 14.bakteriya 15.uzun kun 16.yomg’ir

chuvalchangi 17.issiqsevar o’simliklar 18.ko’r sichqon 19.zamburug’ 20lishaynik

SANA_______________________

NAZORAT ISHI №4

1.Antropogen omil ?

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2.Populyatsiyaga tariff bering

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3.Populyatsiya zichligi

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4.Biotsenozning turlar xilma-xilligi

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SANA____________________________

NAZORAT ISHI № 5

TEST TOPSHIRIG’I

a)tirik organizmlar jamoasi

c)tirik organizmlarda modda va energiya almashivuni majmuyi

2……………………… yorug’lik va kimyoviy energiyadan foydalanib, anorganik moddalardan organic

3.birinchi tartib konsumentlarni toping?

b)chigirtka tuyoqli hayvonlar

4.Qanday organizmlar organic qoldiqlarni anorganik moddalarga aylantiradigan, va ulardagi

elementlarni moddalarning davriy aylanishiga qaytaradigan organizmlar hisoblanadi.

b)chigirtka tuyoqli hayvonlar

5.Oziq zanjiri atamasi kim tomonidn fanga kiritilgan?

6.O’tloq tipidagi oziq zanjirini qanday organizmlar boshlab beradi.

Ingliz tili nazorat ishi javoblari 8 sinf

Fizika 8-sinf 201 201 1- nazorat ishi mavzu

Biologiya fanidan nazorat ishi va labaratoriya daftari

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